Method of manufacturing tenoned heels.



R. B. PUCKETT (I2 H. R. ABBOTT. METHUD OF MANUFACTURING TENONED HEELS.

- APPLICATION FILED MAY 1, I916. u EIDQM WQD Patented JEIIL15,1918.

I if ROBERT B. PUCKETT AND HARRY 1?..ABBOTT, OF ST. LOUIS, MISSOURI.

METHQD OF MANUFACTURING TENONED Application filed May 1, 1916. Serial No. 94,560.

tenon of the material of which the heel is composed is formed on the seat of the heel during the act of compressing the latter.

In companion applications filed April 17th and April 27, 1916, and serial numbered 9l,l72 and 93,893, respectively, we have disclosed a method andapparatus for removing a lift from the heel-seat portion of an. outer sole. In using soles having an opening formed in their heel-seat portion by removing a lift therefrom it is necessary to fill up this opening either before or at the time of applying the heel to the sole; and in still another application, Ser. No. 71,618, filed January 12th, 1916, we have suggested for this purpose securing to the heel a filling tenon of a material cheaper than the mate rial of which the heel was composed, so that when the heel was applied to the sole the tenon would fill the opening therein made by removing the lift. We have found, however, that the tenon for this purpose can be easily and economically formed in the heel I through the act of compressing the latter by simply forming a recessin the upper die or plunger of substantially the size and shape of the lift out from the sole, so that upon compression a portion of the heel will I be received into this recess and not be comface of the portion within said recess, thereby providing the desired tenon on the heel.

In order that our method may be clearly understood we have illustrated certain stages thereof in the accompanying drawing,

in which Figure 1 illustrates, partly in side elevation and partly in section, a heel in the condition in which it appears before being placed in the compress;

Fig. 2 is a plan view of the same;

Fig. 3 is a sectional view of the mold and Specification of Letters Patent.

Patented J an. 15, 19115.

plunger portion of a compress showing the heel under compression and the tenon being formed therein;

. Fig. fl is a cross sectional view of the heel after being compressed to form a tenon thereon;

Fig. 5 is a view in front elevation thereof; and

Fig. (3 is a plan View of the same.

Referring now to the drawing, the numeral 1 indicates a heel made by building up lifts in the usual Way, and which preferably has its upper portion adjacent to the breast 2 of the heel gouged out, as indicated at 8. The heel as thus constructed isthcn placed in the mold 4; of a compress where it is subjected to pressure in the usual way by a plunger head 5 moving upward inthe mold and a die 6 moving downward therein. In order to provide a tenon on the upper side of the heel, however, we provide a recess '7 in the face of the die 6, which recess is substantially of the shape and depth of the lift which has been cut from the heel-seat portion of the outer sole. The leather used for outer soles is sutliciently uniform in thick ness to render any variation in thickness between the height of the tenon to be formed by the recess 7 and the thickness of the outer sole, the opening in which is to be filled by the tenon, of no moment. By an inspection of Fig. 3 it will be understood that as the die 6 descends in the mold the portion 8 thereof surrounding the recess 7 will compress the portion of the heel directly under it, while the remaining portion of the heel will enter the recess 7 and thus leave an upstanding portion or tenon 9 on the upper side of the heel. The depth of the recess 7, however, is such as to permit of compression action on the tenon 9 after the recess 7 has been filled so that the central portion of the heel may not remain uncompressed. Preferably the curved sides of the recess 7 are rounded, as indicated at 10, to permit the ready separation of the tenon 9 from the recess 7 when the die 6 and plunger head 5 are separated. The manner of operating these latter members so as to cause them to first compress the heel and then to raise the heel out of the mold, and finally to separate so that the heel may be removed, is well known to those skilled in the art, and need not be described or illustrated. After the heel has been compressed as described, it will have the appearance in longitudinal section illustrated in Fig. l, in front elevation illustrated in Fig. 5, and in plan illustrated in Fig. 6, that is to say, the tenon 9 will project upwardly from a central part of the heel and the surface of said heel surrounding the tenon Will be inclined down- Wardly from the rounded edgesof the heel to the base of said tenon, as'indicated at 11, and on the remaining 01' breast side of the heel the usual curved recess 12, corresponding to the gouged-out portion 2, will appear, such configuration of the upper sideof the heel being formed by correspondingly shaping the die 6, as will be understood.

We claim:

1. The herein described method. which consists in building a complete heel of substantially uniform thickness throughout, and then forming a tenon on the seat side of the heel by compressing the heel around a prescribed portion of said seat side of the size of the desired tenon whereby the uncompressed portion will project above the plane of the compressed portion.

2. The herein described method which consists in building a complete heel of substantially uniform thickness throughout and then forming a tenon on the seat side ofthe heel by compressing the same between members one of Which, opposite said seat side, is provided With a recess of the size of the tenon desired whereby Whenplaced under compression a portion of the material of the heel Will enter said recess in a substantially uncompressed condition to form the tenon.

3. The herein described method Which consists in building a complete heel of substantially uniform thickness throughout and then forming a tenon on the seat side of said heel by compressing the heel around a prescribed portion of said seat side of the size of the desired tenon and below the plane of such portion, and simultaneously shaping the part of the heel around said portion to cause the same to incline from the rounded edges of the heel to the base of said tenon.

In testimony Whereof,We have hereunto set our hands. a

7 ROBERT B. PUOKETT.

HARRY R. ABBOTT.

Copies of this patent may be obtained for five cents'each, by addressing the.0ommissioner of Patents,

Washington, D. C. s 

